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Future Trends in Service-oriented Computing 7 th Symposium of the HPI Research School June 14 - 15, 2012

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Page 1: Future Trends in Service-oriented Computing · Future Trends in Service-oriented Computing 7th Symposium of the HPI Research School June 14 - 15, 2012

Future Trends in

Service-oriented

Computing 7th Symposium of the

HPI Research School

June 14 - 15, 2012

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Contents

Hasso Plattner Institute for IT-Systems Engineering ............................................................... 3

Agenda ................................................................................................................................ 4

Speakers

Prof. Dr. Christoph Meinel ............................................................................................................... 7

Prof. Dr. Andreas Polze .................................................................................................................... 8

Prof. Dr. Hasso Plattner ................................................................................................................... 9

Prof. Dr. Stefanie Rinderle-Ma ....................................................................................................10

Prof. Dr. Manfred Reichert ............................................................................................................11

Prof. Dr. Hussein Suleman ............................................................................................................12

Dr. Alexander Schmidt ...................................................................................................................13

Martin Raepple .................................................................................................................................14

Heike Ritter .......................................................................................................................................15

Michael Perscheid ...........................................................................................................................16

Uri Verner ...........................................................................................................................................17

HU Haixing .........................................................................................................................................18

Prof. Dr. Andreas Polze ..................................................................................................................19

Prof. Dr. Ran Ginosar ......................................................................................................................20

Rupert Lehner...................................................................................................................................21

Dr. Audrey Mbogho .........................................................................................................................22

Dr. Zoran Nikoloski ..........................................................................................................................24

Prof. Dr. Wang Chongjun ...............................................................................................................25

Ntwa A. Katule .................................................................................................................................26

The HPI Research School ....................................................................................................................29

Expansion of the Research School ..................................................................................................30

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Hasso Plattner Institute

for IT-Systems Engineering The Hasso Plattner Institute for IT-Systems Engineering (HPI) at the University of Potsdam

is unique in Germany for two key reasons: It was the first university institute in Germany

financed entirely by private funds, and second, it is a prime example of a successful public-

private partnership. The Hasso Plattner Institute offers the Bachelor’s and Master’s degree

in “IT-Systems Engineering” that emphasizes the ability to design, develop, and control

large, complex, and distributed IT systems. A particular specialty of the HPI is the strong

engineering orientation that intensively incorporates industrial projects in its curriculum.

10 Research Groups shape the profile of the HPI in IT-Systems Engineering. At the HPI, 460

undergraduate and graduate students are currently enrolled and about 160 research assis-

tants and Ph.D. students are researching in their respective field. Since October 2005, the

HPI runs the Research School on “Service-Oriented Systems Engineering”, an international

Ph.D. school with 50 students in four different countries: Potsdam in Germany, Cape Town in

South Africa, Haifa in Israel, and Nanjing in China.

The Hasso Plattner Institute tightly cooperates with scientific partners, both nationally and

internationally. Among the partners – apart from renowned European universities – are the

Stanford University, the Massachusetts Institute of Technology (MIT) in the US, as well as

Technical University of Beijing in China. Furthermore, the HPI cooperates with renowned

major IT companies, such as EMC, Fujitsu, HP, IBM, Microsoft, SAP, Siemens, T-Mobile, and

others.

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Agenda Symposium on Future Trends in Service-Oriented Computing

Presentation Room: HS 3 Lecture Building

Common Room: H-E.43 Main Building June 14, 9:00 – 15:00 only

Thursday, June 14, 2012 13:00 – 13:15 Opening of the FutureSOC Symposium

Prof. Dr. Christoph Meinel, Director of HPI Prof. Dr. Andreas Polze, Speaker of HPI Research School

13:15 – 14:00 Keynote

Sensors, Mobile Systems, Cloud, Social Networks and In-Memory p. 9 DBs - The Future of Enterprise Computing Prof. Dr. Hasso Plattner, Chairman and Co-Founder SAP AG, Germany

14:00 – 14:15 Coffee Break

14:15 – 15:45 Session 1

Business Process Compliance: Now and Beyond p. 10 Prof. Dr. Stefanie Rinderle-Ma, Research Group Workflow Systems and Technology, University of Vienna, Austria

Enabling Flexibility in Process-aware Information Systems p. 11 Prof. Dr. Manfred Reichert, Institute of Databases and Information Systems, University of Ulm, Germany

Unconventional Digital Library Systems for the Preservation p. 12 of African Heritage Prof. Dr. Hussein Suleman, Department of Computer Science, University of Cape Town, South Africa

15:45 – 16:00 Coffee Break

16:00 – 17:30 Session 2

Operating the Cloud – Windows Server 2012 p. 13 Dr. Alexander Schmidt, Windows Server Team, Microsoft Corporation, Redmond, USA

Federated Identity and Access Management in SAP’s p. 14 Platform-as-a-Service Offering Martin Raepple, Area Product Owner, SAP AG, Germany

Public, Private, Hybrid - Microsoft’s Cloud Vision (in German) p. 15 Heike Ritter, Technical Evangelist, Microsoft Deutschland GmbH, Munich, Germany

17:30 – 17:45 Coffee Break

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17:45 – 19:15 Session 3

Test-driven Fault Navigation for Debugging Reproducible Failures p. 16 Michael Perscheid, HPI Research School

Processing Real-time Data Streams on Accelerator-based Systems p. 17 Uri Verner, HPI Research School at Technion, Israel

Modeling Context and Context-Awareness in Pervasive Computing p. 18 using the Type Theory HU Haixing, HPI Research School at Nanjing University, China

InstantLab 2.0 - A Platform for Operating System Experiments p. 19 on Public Cloud Infrastructure Prof. Dr. Andreas Polze, Operating Systems and Middleware, Hasso Plattner Intitute, Potsdam, Germany

19:30 Social Event

Friday, June 15, 2012

9:00 – 9:45 Keynote

The Plural Architecture: Shared Memory Many-cores p. 20 with Hardware Scheduling Prof. Dr. Ran Ginosar, Technion, Israel

9:45 – 10:00 Coffee Break

10:00 – 11:00 Session 4

Solution Business at Fujitsu p. 21 Rupert Lehner, Senior Vice President Solution Business Group, Fujitsu Technology Solutions GmbH, Munich, Germany

Speech and Language Technologies for Africa p. 22 Dr. Audrey Mbogho, Department of Computer Science, University of Cape Town, South Africa

11:00 – 11:15 Coffee Break

11:15 – 12:05 Session 5

From Design of Technological to Control of Cellular Infrastructure: p. 24 The Case for Heterogeneous Computing in Systems Biology Dr. Zoran Nikoloski, Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany

An Intermediation Framework for Applications to Support Health p. 26 Behaviour Change: A Case of Type 2 Diabetes Ntwa A. Katule, HPI Research School at University of Cape Town, South Africa

12:05 – 12:50 Outlook on Future Collaboration

Research on Complex Network Analysis p. 25 Prof. Dr. Wang Chongjun, HPI Research School at Nanjing University, China

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Introduction:

Hasso Plattner Institute

Bio

Christoph Meinel is full professor (C4) for computer sciences at

HPI and University of Potsdam, holding a chair on „Internet

Technologies and Systems“. His research focuses on Future

Internet Technologies, in particular Internet and Information

Security, Web 3.0: Semantic, Social and Service Web, as well as

innovative Internet Applications, especially in the domains of

e-Learning and Telemedicine. Apart from teaching in the HPI

Bachelor and Master courses on IT-Systems Engineering he

also teaches at the HPI School of Design Thinking. He is a

visiting professor at the College for Computer Science at Bei-

jing University of Technology in China and is a senior research

fellow at the Interdisciplinary Center for Security, Reliability

and Trust (SnT) at the University of Luxembourg (formerly

LIASIT – Luxembourg International Advanced Studies in Infor-

mation Technology). Since 2008, he is program director of the

HPI-Stanford Design Thinking Research Program together with

Prof. Larry Leifer from Stanford University.

Prof. Dr. Christoph Meinel

Director of the Hasso

Plattner Institute,

Germany

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Prof. Dr. Andreas Polze

Speaker of the HPI

Research School

Introduction:

Future SOC Symposium

Bio

Prof. Dr. Andreas Polze is the Operating Systems and Middle-ware Professor at the Hasso Plattner Institute for Software Engineering at University Potsdam, Germany. He is also the head of the Ph.D. school on "Service-Oriented Systems Engi-neering" at HPI. Andreas received a doctoral degree from Freie University Berlin, Germany, in 1994 and a habilitation degree from Humboldt University Berlin in 2001, both in Computer Science.

At HPI, his current research focuses on architectures of operat-ing systems, on component-based middleware, as well as on predictable distributed and cloud computing. Andreas Polze was visiting scientist with the Dynamic Systems Unit at Soft-ware Engineering Institute, at Carnegie Mellon University, Pittsburgh, USA, where he worked on real-time computing on standard middleware (CORBA) and with the Real-Time Systems Laboratory at University of Illinois, Urbana-Champaign. Andre-as has acted as work component leader and member of scien-tific board in the 6th framework European Integration project “Adaptive Services Grid”. Work in ASG has strong links to the Web Services community and industrial standardization efforts.

His current research interests include Predictable Service Com-puting, Adaptive System Configuration, and End-to-End Service Availability for standard middleware platforms. He is member of the GI and the IEEE. He currently is member of the program committees of ISORC (Intl. Symp. On Object-Oriented Real-Time Computing) and WORDS (Workshop on Real-Time Dependable Systems). Andreas Polze has (co-) authored more than 60 pa-pers in scientific journals and conference proceedings. He has contributed to five books.

Together with Mark Russinovich and David Solomon, Andreas Polze is one of the co-authors of the Windows Curriculum Re-source Kit (CRK), the top-download at the Microsoft faculty resource center. Additional projects are centered around the Windows Research Kernel (WRK). Andreas Polze has been funded through the Rotor-I and Rotor -II projects. He received a Phoenix Direct Funding award in 2007 for his research on Phoenix for Real-time Robotics and Process Control. Funded by ZAB/ILB, current research in context of the Fontane telemedi-cine project is focused on prioritizing middleware for monitor-ing patients with heart insufficiencies in rural Brandenburg.

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Sensors, Mobile Systems, Cloud,

Social Networks and In-Memory

DBs – The Future of Enterprise

Computing

Bio

Prof. Dr. h.c. Hasso Plattner is a co-founder of SAP AG, where he

served as the CEO until 2003 and has since been chairman of

the supervisory board. SAP AG is today the leading provider of

enterprise software solutions. In his role as chief software

advisor, he concentrates on defining the mid- and long- term

technology strategy and direction of SAP.

Hasso Plattner received his diploma in communications engi-

neering from the University of Karlsruhe. In recent years, he

has been focusing on teaching and research in the field of

business computing and software engineering at large. In

1998, he founded the Hasso-Plattner-Institute (HPI) in Pots-

dam, Germany. At the HPI, approximately 460 students are

currently pursuing their Bachelors‘ and Masters‘ degrees in IT-

Systems Engineering with the help of roughly 50 professors

and lecturers. The HPI currently has about 100 PhD candidates.

Hasso Plattner leads one of the research groups at HPI which

focuses mainly on In-Memory Data Management for Enterprise

Applications and Human-Centered Software Design and Engi-

neering.

Prof. Dr. Hasso

Plattner

Chairman and

Co-Founder SAP AG,

Germany

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Prof. Dr. Stefanie

Rinderle-Ma

Research Group

Workflow Systems

and Technology

University of Vienna,

Austria

Business Process Compliance:

Now and Beyond Nowadays it is mandatory for almost any enterprise to prove

that its business processes comply with certain regulations

such as laws, medical guidelines, or security policies. This is

typically achieved by (manual) audits which are often complex

and expensive. Hence, many approaches have been proposed

for the (semi-)automatic application of compliance checks for

business processes during the last years. This talk presents our

experiences obtained from recent projects on solving problems

on business process compliance in different domains (e.g.,

healthcare). Looking beyond compliance verification at process

design time, topics such as monitoring, security, and semantic

log purging will be elaborated that pose new exciting challeng-

es.

Bio

Stefanie Rinderle-Ma has been working as full professor and

head of the research group Workflow Systems and Technology

(WST) at the Faculty of Computer Science, University of Vienna

since 2010. From 2000 to 2009, Stefanie worked as a research

assistant at the Database and Information Systems Depart-

ment, University of Ulm, Germany, where she obtained her

doctoral and habilitation degree in Computer Science in 2004

and 2009, respectively. Stefanie spent her postdoctoral stays

at the University of Twente and Technical University of Eind-

hoven in the Netherlands, and University of Ottawa in Canada.

Stefanie has published more than 120 publications in journals,

workshops, and conferences with over 2200 citations. Her

group is currently involved in FP7 project ADVENTURE on vir-

tual factories of the future, D-A-CH project C3Pro on change

and compliance for collaborative processes, as well as the

EBMC2 research cluster project on compliance of skin cancer

treatment processes. Stefanie also serves as a key researcher

at the Secure Business Austria (SBA) competence center in

Vienna. Her research interests include adaptive process man-

agement technology, business process compliance, business

intelligence, as well as human-centered and security aspects in

process-aware information systems.

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Enabling Flexibility in Process-

Aware Information Systems In today's dynamic business world, the success of a company increasingly depends on its ability to react to changes in its environment in a quick and flexible way. Companies have therefore identified process agility as a competitive advantage to address business trends like increasing product and service variability or faster time-to-market, and to ensure business-IT-alignment. Along this trend, a new generation of information systems has emerged-so-called process-aware information systems (PAIS), like workflow management systems or service orchestration engines.

This talk addresses these flexibility needs and provides an overview of PAIS with a strong focus on methods and technol-ogies fostering flexibility for all phases of the process lifecycle. This includes flexibility support for pre-specified processes, the currently predominant paradigm in the BPM field as well as for loosely specified processes, which only partially specify the process model at build-time, while decisions regarding the exact specification of certain model parts are deferred to the

run-time.

Bio Manfred Reichert holds a PhD in Computer Science and a Di-ploma in Mathematics. Since January 2008 he has been ap-pointed as full professor at Ulm University, Germany. Before, he was working as associate professor at the University of Twen-te (UT) in the Netherlands. At UT he was also leader of the strategic research orientations on "E-health" and on "Applied Science of Services", and member of the Management Board of the Centre for Telematics and Information Technology (CTIT) --- CTIT is the largest ICT research institute in the Netherlands comprising more than 350 researchers.

Manfred's major research interests are next generation process management technology (e.g., adaptive processes, process lifecycle management, data-driven and object-centric process-es, mobile process support), service-oriented architectures (e.g., service interoperability, service evolution, service variabil-ity), and advanced applications for ICT solutions (e.g., e-health, automotive engineering). Together with Peter Dadam he pio-neered the work on the ADEPT process management system and is co-founder of the AristaFlow GmbH. He has been partici-pating in numerous research projects in the BPM area and contributed some of the most recognized papers in this field. He was PC Co-chair of the BPM'08 and CoopIS'11 conferences

and General Chair of the BPM'09 conference.

Prof. Dr. Manfred Reichert

Institute of Databases

and Information

Systems

University of Ulm,

Germany

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Prof. Dr. Hussein

Suleman

Department of

Computer Science

University of Cape

Town, South Africa

Unconventional Digital Library

Systems for the Preservation of

African Heritage Digital library systems are software systems that manage

information, such as the ACM Digital Library and Google's

search services. In Africa, such systems are often used to man-

age university document collections and archives of cultural

heritage. However, these projects often face difficulties be-

cause of the lack of human, computational, communication and

financial resources. In order to address these constraints, an

alternative architecture for digital library systems has been

proposed, with a specific focus on simplicity and resource-

aware systems. Early experiments have shown that it is indeed

feasible to construct such systems and that the design philos-

ophy can yield benefits even in the non-developing world.

Bio

Hussein Suleman is an Associate Professor in Computer Sci-

ence at the University of Cape Town, where he directs the

research of the Digital Libraries Laboratory. He completed his

undergraduate degrees and MSc at the then University of

Durban-Westville and finished a PhD at Virginia Tech in the

USA in 2002, in the area of component-based digital libraries.

He actively advocates for Open Access in South Africa, and

works closely with the Networked Digital Library of Theses and

Dissertations (NDLTD), which promotes/supports the adoption

of electronic theses and dissertations and generally digital

libraries worldwide. He currently manages the South African

ETD portal as well as the international ETD Union Archive.

Hussein's main research interests are in digital libraries, infor-

mation retrieval, Internet technology and high performance

computing.

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Operating the Cloud - Windows

Server 2012 Cloud computing, both private and public, is fundamentally

shifting the IT industry, much like as multi-core architectures

are affecting the way we think about writing programs. In a

similar fashion, new applications, designed with the Cloud in

mind, can benefit from the Cloud's almost infinite amount of

resources and the ability to scale up and down as necessity

demands. However, there are many legacy applications that,

for various reasons, cannot easily be migrated into public Cloud

environments.

Windows Server 2012, which will be publicly released later this

year, is designed and optimized for the Cloud. In this talk, we

will address Cloud computing from a management perspective

and introduce new features of the Windows Server 2012 oper-

ating system that allow for building and operating a Cloud

infrastructure both off and on premises. In this regard, we will

present Windows PowerShell as the new central automation

interface to uniformly manage system services, which are

needed as foundation for each Cloud infrastructure, efficiently

across machine boundaries.

Bio

Alexander Schmidt works with the Manageability team inside

the Windows Server group at Microsoft. Prior to that he worked

with the Operating Systems and Middleware group at Hasso

Plattner Institute where he received his PhD in 2011. Alexan-

der is also an alumni of the HPI Research School on Service-

oriented Systems Engineering.

Dr. Alexander Schmidt

Windows Server Team

Microsoft Corporation,

Redmond, USA

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Martin Raepple

Area Product Owner,

SAP AG, Germany

Federated Identity and Access

Management in SAP's Platform-

as-a-Service Offering Following the Platform-as-a-Service (PaaS) model, SAP

NetWeaver Neo delivers the platform for all SAP Java based on-

demand applications and infrastructure offerings. It provides a

trusted, secure, modular, open source and open standards

based Cloud platform for the large community of Enterprise

Java developers. This session explains how SAP NetWeaver

Neo enables Identity Federation and Single Sign-On in the

Cloud to share identities securely across disparate networks

and applications, based on predominant standards such as the

Security Assertion Markup Language (SAML). The session also

discusses the user provisioning model, federated authorization

management, and the programming model in SAP NetWeaver

Neo to enforce authentication and authorizations.

Bio

As the Product Owner for Security and Identity Management

for SAP's Platform-as-a-Service solution, Martin Raepple is

responsible for the success, quality, cost management and

delivery of the product over the whole product lifecycle. He

defines the product's security roadmap and manages the prod-

uct backlog for the development teams. Prior to his product

owner role, Martin represented SAP in international standard

bodies, being responsible for SAP's strategy with regard to Web

Services Security standards, from their initial development to

full product support. Martin has been active regarding the

development of various Web Services specifications, such as

WS-Security Policy or the Service Provisioning Markup Lan-

guage (SPML), and their submission to the Organization for the

Advancement of Structured Information (OASIS). Other activi-

ties include work on Web services interoperability as part of

the Web Services Interoperability Organization (WS-I) and in

terms of joint projects with technology partners. Before Martin

joined SAP in 2005, he has held positions with CSC and IBM as

an IT Architect and Consultant. Martin has over 17 years of

experience in applying information technology in a wide range

of industries including telecommunications, financial services,

manufacturing and transport. Martin speaks frequently at in-

ternational conferences and authored books and articles on IT

security.

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Public, Private, Hybrid –

Microsoft’s Cloud Vision Note: This talk is given in German.

Die Zukunft liegt in der Cloud. Ob wir über Flexibilität der Res-

source, über die Möglichkeit neue Services zu integrieren oder

über Wirtschaftlichkeit sprechen, es gibt die unterschiedlich-

sten Motivationen, auf Cloud Technologien zu setzen –nicht

immer ohne Hindernisse.

Cloud Computing bietet unterschiedliche Modelle wie PaaS,

IaaS, SaaS. Auch verschiedene Formen, in denen Cloud-

Ressourcen zur Verfügung gestellt werden – Public, Private und

Hybrid Cloud - doch was steckt hinter all den Begriffen und für

wen ist was das Richtige?

In diesem Vortrag wird auf die verschiedenen Modelle und

Formen der Cloud eingegangen, welche unterschiedlichen

Einsatzszenarien sich in der Praxis dadurch ergeben, warum

Cloud Computing wichtig ist und welche Trends sich zeigen.

Bio

Heike Ritter ist Technical Evangelist in der Developer Platform

& Strategy Group bei der Microsoft Deutschland GmbH. Derzeit

konzentriert sie sich auf den Bereich Public Cloud, mit Schwer-

punkt Windows Azure. Sie ist seit 1995 in der IT-Branche in

unterschiedlichen Bereichen tätig, immer mit Schwerpunkt auf

Microsoft Technologien. Im Januar 2008 wechselte sie zur

Microsoft Deutschland GmbH und startete dort im EMEA Pre-

mier Support als SharePoint Engineer, wo sie weitere zahlrei-

che Erfahrungen sammeln konnte.

Heike Ritter

Technical Evangelist

Microsoft Deutschland

GmbH, Munich,

Germany

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Michael Perscheid

HPI Research School,

Germany

Test-driven Fault Navigation for

Debugging Reproducible Failures Debugging failing services is often a laborious and time-

consuming activity since the search for failure causes requires

deep knowledge of the service implementation and its behav-

ior. To decrease the required debugging effort, techniques such

as spectrum-based fault localization and dynamic invariant

detection reveal anomalies that may help in identifying failure

causes. By comparing coverage and state of passed and failed

test cases, such approaches produce prioritized lists of suspi-

cious statements which restrict the search space and lower

speculations. Unfortunately, anomalies are not defects—

developers only have numerous loosely coupled starting points

that must tediously be debugged one by one until they find

root causes.

We present test-driven fault navigation as an interconnected

debugging guide that integrates anomalies into a breadth first

search for root causes. Based on test cases as descriptions of

reproducible failures, developers systematically generate and

evaluate failure cause hypotheses by isolating suspicious sys-

tem entities, identifying most qualified colleagues for help, and

debugging emphasized infection chains back in time. We im-

plement test-driven fault navigation in our Path tool suite and

limit its computation costs with the help of our incremental

dynamic analysis. This lightweight analysis automatically

splits, depending on developers' needs, the dynamic analysis

over multiple runs and so ensures a feeling of immediacy when

debugging with our tools. Thus, we answer quickly where to

start debugging, who understands failure causes best, what

happened before failures, how infection chains come to be, and

which program entities are in question.

Bio

Michael Perscheid is a Ph.D. student at the Hasso Plattner

Institute (HPI), University of Potsdam. Since 2008, he is a

member of the HPI Research School on "Service-Oriented Sys-

tems Engineering" and works with the Software Architecture

Group led by Prof. Dr. Robert Hirschfeld. His research interests

include debugging, testing, and program comprehension.

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Processing Real-time Data

Streams on Accelerator-based

Systems Data stream processing applications such as stock exchange

data analysis, VoIP streaming, and sensor data processing pose

two conflicting goals: limited per-stream latency and high

throughput. Manycore programmable accelerators such as

modern GPUs hold high potential to speed up computations.

However their use for hard-real time stream processing is com-

plicated by slow communications with CPUs, variable through-

put changing non-linearly with the input size, and weak con-

sistency of their local memory with respect to CPU accesses.

Furthermore, their coarse grain hardware scheduler renders

them unsuitable for unbalanced multi-stream workloads. I will

present general, efficient and practical algorithms for hard real-

time stream scheduling in heterogeneous systems.

Bio

Uri graduated cum-laude with a B.Sc. in Computer Science from

the Technion in 2009. He then continued his education in the

direct-track PhD program in Computer Science at the Technion -

Israel Institute of Technology. He is an expert in GPU compu-

ting and hybrid CPU/GPU solutions. His research interests are

scheduling in heterogeneous systems, real-time systems, GPU

computing and massive stream processing. Currently, he ex-

plores methods for increasing the throughput of hard real-time

data stream processing systems. His paper describing such

methods for systems with multiple CPUs and GPUs was recent-

ly published in SYSTOR'12. Uri is a member of the ENCORE FP7

project, he is involved in teaching academic courses and super-

vising academic projects, and worked as a software engineer

for several high-tech companies.

Uri Verner

HPI Research School

at Technion, Israel

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HU Haixing

HPI Research School

at Nanjing University,

China

Modeling Context and Context-

Awareness in Pervasive

Computing using the Type

Theory The pervasive computing, or ubiquitous computing, is a post-

desktop model of human computer interaction in which infor-

mation processing has been thoroughly integrated into every-

day objects and activities. A context is any information that

can be used to characterize the situation of an entity. An entity

is a person, place or object that is considered relevant to the

interaction between a user and a device, including the user and

the device themselves. A system is context-aware if it uses

contexts to provide relevant information or services to the

user, where relevancy depends on the user's task.

The key problems in the implementation of a context-aware

computing system are: How to represent the context? How to

compose existing contexts to generate new contexts? How

does the device take different actions according to different

contexts? How could the different devices cooperate between

each other?

In this talk we will present a way to model the context and

context-aware computing using the type theory. We use the

typed term to represent the context, as well as the action of a

device; and use the propositions (corresponds to types in the

type theory) to represent the rules of the device. Thus the

responds of devices to contexts and the cooperation between

devices are reduced to the logical deductions in the type theo-

ry.

Bio

Haixing Hu is a Ph.D. candidate of computer science in Nanjing

University. He also received his bachelor and master degrees in

computer science from Nanjing University. He has visited the

VERIMAG laboratory in University Joseph Fourier of France and

finished his master degree thesis there. His research direction

is formal method, especially the type theory. Recently he has

moved his research interests to the quantum logic and the

quantum algorithm.

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InstantLab 2.0 - A Platform for

Operating System Experiments

on Public Cloud Infrastructure More than 5 years of experience with the Windows Research

Kernel in teaching operating system graduate classes have

revealed several issues: the infrastructure needed for conduct-

ing those experiments is an ever-changing target. On the one

hand, hardware has to be maintained and updated appropriate-

ly; on the other hand, the variety of platform versions we had

to deal with is constantly increasing. To remedy these issues

we propose migrating OS experiments and research into the

Cloud.

InstantLab 2.0 is our approach for conducting operating system

experiments – such as extending the kernel with new system

calls – in the cloud, which relieves faculty and students from

the maintenance, versioning, and configuration overhead.

There are many cloud offerings where a certain amount of

cloud computing resources is provided to users for free: IT

companies have an interest to acquaint users with their tech-

nologies as potential customers. We propose an architecture to

automatically provision experiments on public cloud infrastruc-

ture and manage access to resources based on a user rating,

derived from the users interaction history.

Prof. Dr. Andreas Polze

Operating Systems

and Middleware

Hasso Plattner

Institute, Potsdam,

Germany

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Prof. Dr. Ran Ginosar

Department of

Electrical Engineering

Technion, Israel

The Plural Architecture:

Shared Memory Many-cores with

Hardware Scheduling The Plural many-core architecture combines hundreds of simple

cache-less cores, many shared memory banks, a hardware

scheduler, and two custom active networks-on-chip: cores-to-

memories and cores-to-scheduler. A theoretical model (almost)

justifies increasing the number of cores while making them

smaller and slower, maximizing performance-to-power ratio.

Several benchmark simulations are demonstrated, showing

close to linear speedup and high performance-to-power ratio. A

de-synchronized PRAM-like task-based non-CSP and non-

locking programming model for shared memory enables fine-

grain parallelism.

Bio

Prof. Ran Ginosar received BSc from the Technion and PhD from

Princeton University. He has conducted research at Bell Labora-

tories, at the University of Utah and at Intel Research Labora-

tories in Oregon, USA. He is member of the faculty of EE and CS

departments at the Technion, and heads the VLSI Systems

Research Center. He has also co-founded several start-up com-

panies in the area of VLSI and parallel processing. His research

interests focus on VLSI, asynchronous logic and parallel pro-

cessing architectures.

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Solution Business at Fujitsu In our business environment it is not only cloud that concerns

you. The topics of consolidation, virtualization and automation

in the data center as well as client environment are still im-

portant topics. Alternative provision and delivery models from

Managed Services through to Infrastructure as a Service are

now rivaling the ranking of normal operating models. Social

media is making inroads into company practice. Mobility chal-

lenges are growing in the face of the increasing use of private

devices at work. And due to the ever-increasing flows of data

hardly an IT manager is spared from becoming intensively

occupied with the topic of data security and availability.

Fujitsu introduce transparency into this extreme diversity. How

we will take up these challenges – and open up the possibili-

ties, alternatives and options to overcome them with the right

solutions and innovative technologies for the mission critical

business cases of our customers.

Bio

Rupert Lehner is Head of the newly-formed Solution Business

Group at Fujitsu Technology Solutions. He was appointed to

this role in May 2012, having previously held a series of interim

management roles including head of the Western Europe sales

cluster and head of Sales Cluster Germany.

Based at Fujitsu Technology Solutions’ headquarters in Munich,

Germany, Rupert is in charge of expanding the company’s

range of software solutions. The new Solutions Business Group

covers software and solutions including FlexFrame, Server-

View, DI Blocks and Resource Orchestrator. It also encompasses

Fujitsu’s Cloud offerings, including the Business Solutions

Store.

Rupert, who studied Business Administration at the University

of Erlangen-Nuremburg in Germany, began his career in 1990

when he joined Siemens AG in Nuremburg. Since then he has

held various roles with Fujitsu Siemens Computers and Fujitsu

Technology Solutions.

Rupert Lehner

Senior Vice President

Solution Business

Group

Fujitsu Technology

Solutions GmbH,

Munich, Germany

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Dr. Audrey Mbogho

Department of

Computer Science

University of Cape

Town, South Africa

Speech and Language

Technologies for Africa In recent years, there has been a surge in speech-related inno-

vation from various quarters. Advancements in hardware tech-

nologies have made it possible to tackle problems that were

previously intractable. Processor speeds and memory capaci-

ties have increased greatly. Miniaturization, in addition, has

made this computing power available in devices that are small

and affordable to the masses. Computer science research has

produced algorithms that are efficient and highly accurate in

processing speech, albeit within certain constraints. While the

general problem of speech recognition remains intractable,

limiting the problem to specific domains has given excellent

results, and great strides have been made in implementing

reliable speech recognition applications. For example, in the

developed world, customer service at banks, credit card compa-

nies, and the like, is largely automated, with callers stating

their needs verbally to machines and getting appropriate re-

sponses. Furthermore, responses are human-like and no longer

in the robotic monotone made famous by sci-fi movies. Google

Voice Search1 is a recent highly successful application of

speech recognition. It allows mobile device users to speak their

search queries. Siri2, the digital assistant on Apple’s iPhone 4S,

communicates through speech quite intelligently These inno-

vations, which are rapidly catching on with other makers of

cellular phones, are very convenient for such devices which are

difficult to type into due to their small size. We can expect that

speech technology will be standard on mobile devices of the

future.

Unfortunately, in the developing world, the infamous digital

divide is being widened further by these advances. While ap-

plications such as those cited above are truly astounding, they

are not usable by everyone, everywhere. Where English is

spoken in Africa, accents present a serious challenge, so that

within the same country, there are those who can use these

systems, but most can’t, with the latter group quite possibly

being the one that is most in need of such a technology. Ideal-

ly, the matter of foreign accents should not even arise; each

person should be able to communicate with a computing device

in his or her own native language.

1 http://www.google.com/mobile/voice-search/ 2 http://www.apple.com/iphone/features/siri.html

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While people in the developed world may already be using

Google voice search to locate services quickly and easily, this is

not possible for many in Africa. And yet such capabilities are

needed more in Africa where literacy levels are lowest. A per-

son in the developed world is likely to be literate, and using

Google voice search is just one of the many options at his or

her disposal. On the other hand, a semi-literate person in the

developing world needing information about HIV/AIDS or dia-

betes management may have no options other than to speak

her requests—this is the person who truly needs speech recog-

nition, and yet this is the person who does not have access to

this technology. This is because there has not been much done

to include African languages, as well as other languages of the

developing world, in speech research.

This situation is changing, as more and more researchers begin

to look into this problem. This talk will survey ongoing research

and innovation efforts on African languages and languages

spoken in Africa.

Bio

Dr. Audrey Mbogho is a Senior lecturer in the Department of

Computer Science at the University of Cape Town in South

Africa. She obtained her PhD from the City University of New

York in the USA. Her research interests are in the area of natu-

ral interaction modalities. Specifically she is interested in de-

vices for human computer interaction which focus on special-

needs users, encompassing not only those with disabilities but

also those in situations that make computer use difficult. Tradi-

tional modes of interacting with computers (keyboard, mouse

and GUI) prove inadequate for users with physical challenges

such as blindness, for users with limited literacy, for users of

small or embedded computers, and for users in special envi-

ronments such as underwater. Dr. Mbogho is interested in ex-

perimenting with novel means of interaction, such as speech

recognition and computer vision. Techniques in these fields,

and in the broader field of machine learning, have the potential

to allow humans to interact with computers in much the same

way as they do with one another—through speech and vision.

She believes that these means of interaction have the poten-

tial to lift the barriers and bring the benefits of computer tech-

nology to sections of the society that would otherwise remain

excluded and underserved.

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Dr. Zoran Nikoloski

Max Planck Institute

of Molecular Plant

Physiology, Potsdam,

Germany

From Design of Technological to

Control of Cellular Infrastructure:

The Case for Heterogeneous

Computing in Systems Biology Optimization techniques have been widely used to design

efficient technological infrastructure networks, from highway

systems to the Internet. With the advent of high-throughput

technologies for monitoring living systems, from whole organ-

isms to organs, tissues, and individual cells, it has become

apparent that optimization principles govern most if not all

cellular processes. I will present a broad overview of how tech-

niques of optimization can be used in combination with large

data compendia to understand and re-engineer living systems

with the ultimate goal of facilitating controllability. The over-

view of questions, approaches, and challenges emphasizes the

important role that heterogeneous computing has started to

play in the development of modern computational systems

biology.

Bio

Dr. Zoran Nikoloski received a PhD degree in computer science

from the University of Central Florida, Orlando, USA in 2005.

From 2004 to 2007, he was a postdoctoral researcher in the

Department of Applied Mathematics, Faculty of Mathematics

and Physics, Charles University, Prague, Czech Republic. He is

currently a Group Leader at the Max-Planck Institute for Mo-

lecular Plant Physiology, Potsdam-Golm, Germany, heading the

group on Systems Biology and Mathematical modeling. His

general research interests concern Computational Biology,

Bioinformatics, Applied Mathematics, Quantitative Methods in

Operations Research and Model Design, and Network Design

and Optimization.

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Research on Complex Network

Analysis With the continued development of those virtualized platform

such as Facebook and Ren-Ren, people have more exchange

ways. Thus, more and more researchers from different research

areas, such as sociology, psychology, computer science and so

on, are attracted by social network analysis. The main reason,

we think, is that effectively analyzing the social network could

clearly discover, understand and reveal the rule or nature of

persons, we have techniques to support effectively support for

commerce recommendation, public opinion analyze and so on.

A brief introduction of complex network analysis, social net-

work analysis and relation mining will be given. The main re-

search hotspots and several challenges will be presented. Then

some of our research work and research motivation on complex

network analysis will be given, including some algorithm re-

search and some application examples and systems.

At the end of this talk, HPI-Nanjing and its main research on

massive data analysis and knowledge discovery will be briefly

presented.

Bio

Dr. Wang Chong-Jun was graduated from Nanjing University

and got Ph.D in 2004, he is now a full-time associate professor

of Department of Computer Science and Technology, Nanjing

University. He is also one of the seven professors at HPI-

Nanjing. His research interest includes agent & multi-agent

systems, complex network analysis & relation mining, intelli-

gent information processing and intelligent systems. He has

published more than 60 papers and been engaged in more

than 20 projects. Many research results had been industrial-

ized.

Prof. Dr. Wang Chongjun

HPI Research School

at Nanjing University,

China

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Ntwa A. Katule

HPI Research School

at University of Cape

Town, South Africa

An Intermediation Framework for

Applications to Support Health

Behaviour Change:

A Case of Type 2 Diabetes Personal informatics applications (PIAs) are software systems that enable individuals to reflect and learn from their collected personal data for the purpose of improving self-understanding in order to instigate adoption of positive behaviours. PIAs offer useful ways of using information and communication technolo-gy in health self-management especially in management of chronic diseases. Mobile phone is a promising platform for these applications that can be used in self-management appli-cations because of its wide proliferation in the society.

Many HCI researchers are now concerned with how these per-sonal informatics applications should be developed to support their users in changing behaviour. The focus has been on how both data collection and behaviour reflection are supported. The interest has gone far into integrating these applications with social network platforms. All these efforts are in devel-oped countries of where literacy and access to technology are not the major problems. In low income communities of develop-ing countries, access constraints related to lack of lack of liter-acy, lack of ownership due financial constraints, and lack of skills to operate ICTs’ tools has resulted into these technolo-gies being shared by many people. One aspect of sharing is known as intermediation. Intermediation is whereby a targeted user is facilitated to interact with a computing application through a third party user who is not the intended user of that application. Existing personal informatics applications have not been designed to support usage in the context of intermedia-tion.

Therefore, this research investigates an appropriate framework for interaction through intermediation in the context of per-sonal informatics applications targeting health behaviour change in chronically ill patients. A case study is on type 2 diabetes, as it is now a highly prevalent disease in developing countries due to adoption of a sedentary lifestyle by people. This work will look at how best patients need to be supported in order induce a positive behaviour change while being helped by intermediary users to interact with the application. The targeted behaviours are eating habits, and physical exercise. An application implementing such a framework will be evaluat-ed for its usability and its impact on behaviour change.

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Bio

My Name is Ntwa A. Katule, a Tanzania citizen by birth. I have a BSc with majors in computer science and applied mathematics from University of Kwa Zulu Natal where I graduated in 2005, and MSc in computer science from University of Dar es salaam where I graduated in 2009. My research interests include soft-ware engineering, mobile health, persuasive technologies, and human computer interaction. Something that I enjoy most in computer science is development of software artefacts to help

people in solving real world problems.

My PhD topic falls under three themes which are behaviour change, chronic diseases management, and human computer interaction in developing world. I am being supervised by three supervisors, Dr Hanh Lee and Prof. Gary Marsden from comput-er science department, and Dr Ian Ross from the medical school of University of Cape Town. We are trying to see if personal informatics applications to enable users to track and review information related to their personal health, can be developed for the context of where access to technology can be ham-pered by access constraints such as lack of literacy, lack of skills to operate technology, and lack of access due to financial reasons. Our research is looking at one aspect of sharing devic-es, which is known as usage through intermediation. The con-cern is how a technology can be designed to support behaviour change in the context of patients using it through intermedia-tion. My motivation to work on this area is due the fact that, chronic diseases are becoming highly prevalent in developing world countries and tools to support self-management in this context are not available. The existing tools were not designed for this context therefore they tend to ignore a lot of contex-

tual considerations.

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Notes

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The HPI Research School In October 2005, the HPI started its Research School on “Service-Oriented Systems Engi-neering”, a graduate school based on the model of the DFG (German Research Foundation)

“Graduiertenkolleg”.

The Vision of the Research School

Design and implementation of service-oriented architectures impose numerous research questions from the fields of software engineering, system analysis and modeling, adaptabil-ity, and application integration.

Service-Oriented Systems Engineering represents a symbiosis of best practices in object orientation, component-based development, distributed computing, and business process management. It provides integration of business and IT concerns.

Service-Oriented Systems Engineering denotes a current research topic in the field of IT-Systems Engineering with high potential in academic research as well as in industrial appli-cation. Supported by an internationally renowned grant, PhD students at our college partici-pate in joint activities such as lectures, seminars, winter schools and workshops.

The Members of the Research School

The Professors of the HPI with their research group are supporting pillars for our PhD school. With its interdisciplinary structure, the research college on Service-Oriented Systems Engineering interconnects the HPI research groups and fosters close and fruitful collabora-tions.

In context of the research college, the different groups at HPI work on the following topics:

Human Computer Interaction and Computer Vision as Service Prof. Dr. Patrick Baudisch

Service-Oriented Geovisualization Systems Prof. Dr. Jürgen Döllner

Tools and Methods for Software Engineering in Service-Oriented Systems Prof. Dr. Robert Hirschfeld

Security Engineering of Service-Based IT-Systems Prof. Dr. Christof Meinel

Service-Oriented Information Integration Prof. Dr. Felix Naumann

Evolutionary Transition of Enterprise Applications to Service-Orientation Prof. Dr. h.c. Hasso Plattner

Operating System Abstractions for Service-Oriented Computing Prof. Dr. Andreas Polze

Services Specification, Composition, and Enactment Prof. Dr. Mathias Weske

Quantitative Evaluation and Optimization of Service-Oriented Systems Prof. Dr. Werner Zorn

On the Website of the Research School, please find latest information about the Ph.D. stu-dents, their research interests, joint projects, and events: http://www.hpi.uni-potsdam.de/research_school

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Expansion of the Research School

“Service-oriented Systems Engineering”

8 PhD. Grants available – starting October 1, 2012

Hasso Plattner Institute (HPI) is a privately financed institute affiliated with the University

of Potsdam, Germany. The Institute‘s founder and benefactor Professor Hasso Plattner, who

is also co-founder and chairman of the supervisory board of SAP AG, has created an oppor-

tunity for students to experience a unique education in IT-Systems Engineering in a profes-

sional research environment with a strong practice orientation.

In 2005, HPI initiated the research school in “Service-Oriented Systems Engineering“ under

the scientific supervision of Professors Jürgen Döllner, Holger Giese, Robert Hirschfeld,

Christoph Meinel, Felix Naumann, Hasso Plattner, Andreas Polze, Mathias Weske and Patrick

Baudisch.

We are expanding our research school and are currently seeking

� 8 Ph.D. students (monthly grants 1400-1600 Euro) and

� 2 Postdocs (monthly grant 1800 Euro)

Positions will be available starting October 1, 2012. The grants are not subject to income

tax.

The main research areas in the research school at HPI are:

� Self-Adaptive Service-Oriented Systems

� Operating System Support for Service-oriented Systems

� Architecture and Modeling of Service-oriented Systems

� Adaptive Process Management

� Services Composition and Workflow Planning

� Security Engineering of Service-Based IT Systems

� Quantitative Analysis und Optimization of Service-Oriented Systems

� Service-oriented Systems in 3D Computer Graphics

� Service-oriented Geoinformatics

� Human-Computer Interaction for Service-oriented Systems

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Prospective candidates are invited to apply with:

� Curriculum vitae and copies of degree certificates/transcripts,

� A short research proposal,

� Writing samples/copies of relevant scientific papers (e.g. thesis, etc.),

� Letters of recommendation.

Please submit your applications by August 1, 2012 to the coordinator of the research

school:

Prof. Dr. Andreas Polze

Hasso-Plattner-Institute, Universität Potsdam

Postfach 90 04 60, 14440 Potsdam, Germany

Successful candidates will be notified by September 15, 2012 and are expected to enroll

into the program on October 1, 2012.

For additional information visit http://kolleg.hpi.uni-potsdam.de

or contact the office: Telephone +49-331-5509-220

Telefax +49-331-5509-229

Email: [email protected]

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Notes

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Hasso-Plattner-Institut

IT-Systems Engineering | Universität Potsdam

Campus Griebnitzsee

Prof.-Dr.-Helmert-Str. 2-3

14482 Potsdam

Tel.: (+49 331) 55 09-0 Fax: (+49 331) 55 09-129

www.hpi.uni-potsdam.de [email protected]